We're dividing 378505 by 72 
We want to figure out the number of times 378505 can be divided by 72.

Moving on to step 1:
72 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 72

Advancing to step 2:
37 divided by 72 is 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 72

Going ahead to step 3:
378 divided by 72 is 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 360 from 378, we get 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 72

Advancing to step 4:
72 goes into 185 2 times with a remainder of 41.
The next digit of our result is 2. 
Result so far: 52.0
Deduct 144 from 185 and we're left with 41.
Grab the next digit (0) from the dividend, add it to 41, then carry on: 410 / 72

Advancing to step 5:
410 divided by 72 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 525.0
The remainder is 50 after subtracting 360 from 410.
Grab the next digit (5) from the dividend, add it to 50, then carry on: 505 / 72

Going ahead to step 6:
If we divide 505 by 72, we get 7 and a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 5257.0
Deduct 504 from 505 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
When dividing 10 by 72, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 5257.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
If we divide 100 by 72, we get 1 and a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 5257.01
Subtracting 72 from 100 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
280 divided by 72 is 3 with a remainder of 64.
Record the quotient 3 as the next digit in the result. 
Result so far: 5257.013
Subtract 216 from 280 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
The number 72 fits into 640 8 times, leaving a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 5257.0138
The remainder is 64 after subtracting 576 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 11:
When dividing 640 by 72, we get 8 with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 5257.01388
Subtract 576 from 640 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 5257.01388 and a remainder of 6.4e-05.